Method empty

include/util/bit_range.hpp:59–59

    BitIterator<T> end() const { return BitIterator<T>(0); }
    std::size_t size() const { return std::popcount(static_cast<std::make_unsigned_t<T>>(value)); }
    bool empty() const { return value == 0; }
    std::size_t front() const { return msb(value); }
    T value;
};